The UnXplained mit William Shatner

What motivates someone to steal? Is it just for the money, or could a criminal have other reasons for pulling off a particularly daring robbery?

For centuries, humanity has looked up at the moon with a sense of wonder. But is the moon just a rock floating in space? Or could it hold profound secrets-and incredible powers?

We examine some of the most devastating plagues in human history. In the future, might we face diseases that are different from ones we've experienced before?

The total disregard for life exhibited by serial killers shocks our sense of humanity and makes us question our safety and security. How could human beings be capable of these horrific atrocities?

Stories of mysterious disappearances are as compelling as they are confounding. Can these bizarre vanishings just be chalked up to tragic accidents?

For centuries, legends and eyewitness accounts have told of a massive, hairy creature that roams the forest on two legs. But does Bigfoot actually exist?

Mankind's quest for gold harkens back thousands of years, but what is the special power that gold wields over our collective consciousness?

For centuries, humanity has been compelled to build remarkable structures that are much more than simple places of shelter or work. What makes us want to create magnificent buildings?

According to Plato, the lost continent of Atlantis was once home to an advanced civilization before it was destroyed in a cataclysm. Did Atlantis really exist?

America's monuments are groundbreaking feats of engineering and history. Why is it that America's greatest monuments continue to enthrall us?

From ancient civilizations to 20th century empires, mankind has had an inexplicable fascination with preserving the dead. But why?

Many believe the Bible to be the Word of God, while others claim it contains inconsistencies and contradictions that could only be manmade. What's the truth?

Stories of those who lead double lives are both daring and baffling. What compels a person to attempt to become someone else? Is it merely for material gain-or is there a deeper reason?

There is much that we still don't know about what lies deep beneath our feet. What is really at the center of the Earth? And if much of our past was subterranean, could our future be as well?

For decades, the debate has raged as to what exactly UFOs really are. Could they in fact be spacecraft piloted by extraterrestrial beings? And if so, how much does the government know about them?

Throughout history, many have believed that certain places, things, or even people can be tainted with dark curses. But can these mysterious curses really have the power to bring us harm?

Our five senses-sight, smell, hearing, taste and touch-construct the reality of the world around us. But what about when one or more of our senses is heightened, changed, or even taken away?

Some of history's greatest tales are stories of escape, the most incredible of which defy explanation. Are there strange forces these escapees draw upon to beat the odds, where so many others fail?